The IOMMU code has been passing the dma-mask instead of the
coherent_dma_mask to the iommu allocator. Coherent allocations should
be made using the coherent_dma_mask.
Signed-off-by: Milton Miller <milt...@bga.com>
Signed-off-by: Nishanth Aravamudan <n...@us.ibm.com>
---
We currently don't check the mask other than to warn when its being set,
so I don't think this is stable material.
---
arch/powerpc/kernel/dma-iommu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 6e54a0f..e755415 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -19,7 +19,7 @@ static void *dma_iommu_alloc_coherent(struct device *dev,
size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size,
- dma_handle, device_to_mask(dev), flag,
+ dma_handle, dev->coherent_dma_mask, flag,
dev_to_node(dev));
}
--
1.7.0.4
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